Bug killing gun

Abstract

A bug killing gun includes a compressed gas source fluidly connected to a chamber connected to a barrel. A compressed gas release mechanism is connected to the compressed gas source. A projectile storage magazine stores particulate projectiles and is located adjacent the chamber. A projectile loading mechanism moves the projectiles into the chamber from the magazine. A cocking mechanism is mechanically connected to the compressed gas source, the compressed gas release mechanism, and the projectile loading mechanism. A stock houses and supports the compressed gas source, the compressed gas release mechanism, the barrel, the chamber, the projectile storage magazine, the cocking mechanism and the projectile loading mechanism. When the gun is cocked, the projectile loading mechanism loads a predetermined quantity of the particulate projectiles into the chamber. When the compressed gas release mechanism is activated the projectiles are ejected from the chamber into the barrel and expelled from the gun.

1. A bug killing gun, comprising:
 a compressed gas source, 
 a chamber, said chamber fluidly connected to said compressed gas source; 
 a barrel, said barrel disposed at a distal end of said chamber; 
 a compressed gas release mechanism, said release mechanism connected to said compressed gas source; 
 a projectile storage magazine, said magazine storing particulate projectiles and being disposed adjacent said chamber; 
 a projectile loading mechanism, said loading mechanism moving said particulate projectiles into said chamber from said magazine; 
 a cocking mechanism mechanically connecting said compressed gas source, said compressed gas release mechanism, and said projectile loading mechanism; 
 a stock, said stock housing and supporting said compressed gas source, said compressed gas release mechanism, said barrel, said chamber, said projectile storage magazine, said cocking mechanism and said projectile loading mechanism; 
 wherein, when said gun is cocked by said cocking mechanism, said projectile loading mechanism gathers a predetermined quantity of said particulate projectiles and positions said projectiles in said chamber; and when said compressed gas release mechanism is activated said projectiles are ejected from said chamber into said barrel and expelled from said gun. 
 
     
     
       2. The bug killing gun, as described in  claim 1 , further comprising:
 a safety mechanism, said safety mechanism being moved from a firing permitting position to a firing preventing position by said gun cocking action; 
 said firing preventing position preventing activation of said compressed gas release mechanism and being indicated to a user by automatic movement of a primary external safety lever to a first, safe position; and 
 said firing permitting position permitting activation of said compressed gas release mechanism and being indicated to said user by manual movement by said user of said external safety lever to a second, firing position. 
 
     
     
       3. The bug killing gun, as described in  claim 2 , further comprising a secondary safety indicator, said secondary safety indicator being moved from a hidden position to a visible position by said gun cocking action and being moved to said hidden position by activation of said compressed gas release mechanism. 
     
     
       4. The bug killing gun, as described in  claim 1 , wherein said compressed gas source is selected from the group comprising:
 a prefilled CO 2  cartridge, a refillable compressed gas cylinder, a pneumatically pumped gas reservoir, a spring-activated compressed gas chamber and an external compressed gas line. 
 
     
     
       5. The bug killing gun, as described in  claim 4 , wherein said spring-activated compressed gas chamber further comprises:
 a cylinder, said cylinder having a front end and a rear end and being fluidly connected to said chamber at said front end; 
 a piston, said piston fitting sealably in said cylinder and being disposed therein; 
 a compression spring, said compression spring urging said piston toward said front end; 
 a spring compression mechanism, said compression mechanism urging said piston towards said rear end and compressing said compression spring; 
 a latching mechanism, said latching mechanism releasably retaining said piston adjacent said rear end and retaining said compression spring in a compressed state; and 
 wherein a user performs said gun cocking action, said spring compression mechanism is operated, said piston is urged toward said rear end of said cylinder, said spring is compressed and said spring and said piston are retained by said latching mechanism until released allowing said piston to move rapidly toward said front end of said cylinder, providing a burst of compressed gas in said cylinder and to said connected chamber. 
 
     
     
       6. The bug killing gun, as described in  claim 5 , wherein said compressed gas release mechanism further comprises:
 a trigger, said trigger being urged forward by a trigger return spring; 
 said trigger having an upper notch, said upper notch engaging an internal safety pivot, said safety pivot preventing release of said latching mechanism unless said cocking action is completed; 
 said trigger having an elevating ramp disposed rewardly of said upper notch, said elevating ramp urging a releasing bracket of said latching mechanism upwardly against a downwardly urging compression spring as said trigger is moved rearwardly; 
 said releasing bracket moving slidably within a vertical channel in said supporting stock and having a downwardly facing rib, said rib releasably engaging an upwardly facing control notch in a main pole of said latching mechanism; 
 said main pole being attached to said piston, having an upwardly angled ramp at a rear end, disposed behind said control notch, said ramp guiding said rib into said control notch, said main pole moving rearwardly in a channel in said supporting stock during said cocking action; and 
 said releasing bracket retaining said main pole in a first, cocked position as said rib engages said control notch and releasing said main pole to a second, fired position as said trigger is moved rearwardly elevating said releasing bracket and raising said rib from said control notch, allowing said main pole and said piston to move forward as urged by said compression spring, pressurizing said cylinder. 
 
     
     
       7. The bug killing gun, as described in  claim 5 , wherein said spring compression mechanism further comprises:
 a primary gear rack, said gear rack being slidably disposed in a channel in said supporting stock, having gear teeth disposed upon an upper surface and having mounting fixtures adjacent a forward end for attachment of a slide handle; 
 a reduction gear drive, said gear drive mounted to an outer cover of said cylinder; 
 a secondary gear rack, said secondary rack attached indirectly to said piston and being disposed slidably in a slot in said outer cover above said reduction gear drive; 
 said primary gear rack engaging said reduction gear drive and said reduction gear drive engaging said secondary gear rack; and 
 wherein rearward movement of said slide handle moves said primary gear rack rearward, rotates said reduction gear drive, moves said secondary gear rack rearward and moves said piston rearward, compressing said compression spring. 
 
     
     
       8. The bug killing gun, as described in  claim 7 , wherein:
 said upper surface of said primary gear rack maintains a first end of an internal safety pivot in an elevated position during rearward movement, causing a second end of said pivot, said second end having a downward facing notch, to engage an upper notch at an upper end of a trigger of said compressed gas release mechanism, thereby preventing activation of said mechanism; and 
 said upper surface permitting downward movement of said internal safety pivot, as urged by a coil spring, upon completion of forward movement of said primary gear rack, said downward movement permitting release of said downward facing notch from said trigger and permitting activation of said gas release mechanism. 
 
     
     
       9. The bug killing gun, as described in  claim 8 , wherein completion of forward movement of said primary gear rack is indicated to a user by an auditory indicator, said indicator comprising:
 a spring-driven pin and a receiving detent, said detent disposed at a distal end of a side surface of said primary gear rack and said spring-driven pin disposed on an interior surface of said support stock adjacent said primary gear rack; and 
 wherein said spring-driven pin enters said detent upon completion of forward movement of said primary gear rack providing an auditory signal to said user. 
 
     
     
       10. The bug killing gun, as described in  claim 4 , wherein said gun uses a prefilled CO 2  cartridge as a compressed gas source, said gun further comprising:
 a cylindrical cartridge chamber, said cartridge chamber being sized and shaped to enclose the CO 2  cartridge, having a sealable opening at a first end for introduction of said cartridge, a concave seat disposed at a second end, said seat being sized and shaped to fit sealably about a discharging end of said cartridge, a hollow puncturing needle disposed within said seat; 
 a sealing cap, said cap being removably attached to said cartridge chamber by mating screw threads, tightening of said cap urging said cartridge against said puncturing needle; 
 a pressure vessel, said pressure vessel being fluidly connected to a metering device; and 
 said metering device permitting a predetermined charge of compressed gas to enter said chamber upon activation of said compressed gas release mechanism. 
 
     
     
       11. The bug killing gun, as described in  claim 10 , wherein said compressed gas release mechanism further comprises:
 a trigger, said trigger being urged forward by a trigger return spring; 
 said trigger having an upper notch, said upper notch engaging an internal safety pivot, said safety pivot preventing activation of said compressed gas release mechanism unless said cocking action is completed; 
 said trigger having an elevating ramp disposed rewardly of said upper notch, said elevating ramp urging a releasing bracket of said latching mechanism upwardly against a downwardly urging compression spring as said trigger is moved rearwardly; 
 said releasing bracket moving slidably within a vertical channel in said supporting stock and having a downwardly facing rib, said rib releasably engaging an upwardly facing control notch in a loading rod; 
 said loading rod being urged forward by a loading coil spring, having an upwardly angled ramp at a rear end, disposed behind said control notch, said ramp guiding said rib into said control notch, said loading rod moving rearwardly in a channel in said supporting stock during said cocking action; and 
 said releasing bracket retaining said loading rod in a first, cocked position as said rib engages said control notch and releasing said loading rod to a second, fired position as said trigger is moved rearwardly elevating said releasing bracket and raising said rib from said control notch, allowing said loading rod to move forward as urged by said loading coil spring, said loading rod activating said projectile loading mechanism and said metering device. 
 
     
     
       12. The bug killing gun, as described in  claim 4 , wherein said gun uses a pneumatically pumped air reservoir as a compressed gas source, said gun further comprising:
 a gas cylinder, said cylinder having an inlet valve and an outlet valve; 
 a piston, said piston fitting sealably within said cylinder; 
 a pumping mechanism, said pumping mechanism mechanically linked to said piston, and moving said piston from an extended position to a compressed position within said cylinder; 
 said inlet valve being in an open position as said piston moves from said compressed position to said extended position and being in a closed position as said piston moves from said extended position to said compressed position; 
 said outlet valve being in a closed position as said piston moves from said compressed position to said extended position and being in an open position as said piston moves from said extended position to said compressed position; 
 said air reservoir being fluidly connected to said outlet valve and said chamber; 
 said projectile loading mechanism permitting a predetermined charge of compressed gas to enter said chamber upon activation of said compressed gas release mechanism; and 
 wherein repeated movement of said piston by said pumping mechanism from said extended position to said compressed position within said cylinder will increase pressure within said air reservoir, permitting said particulate projectiles to be ejected from said chamber with increased force upon release of said pressure by said compressed gas release mechanism. 
 
     
     
       13. The bug killing gun, as described in  claim 12 , wherein said compressed gas release mechanism further comprises:
 a trigger, said trigger being urged forward by a trigger return spring; 
 said trigger having an upper notch, said upper notch engaging an internal safety pivot, said safety pivot preventing activation of said compressed gas release mechanism unless said cocking action is completed; 
 said trigger having an elevating ramp disposed rewardly of said upper notch, said elevating ramp urging a releasing bracket of said latching mechanism upwardly against a downwardly urging compression spring as said trigger is moved rearwardly; 
 said releasing bracket moving slidably within a vertical channel in said supporting stock and having a downwardly facing rib, said rib releasably engaging an upwardly facing control notch in a loading rod; 
 said loading rod being urged forward by a loading coil spring, having an upwardly angled ramp at a rear end, disposed behind said control notch, said ramp guiding said rib into said control notch, said loading rod moving rearwardly in a channel in said supporting stock during said cocking action; and 
 said releasing bracket retaining said loading rod in a first, cocked position as said rib engages said control notch and releasing said loading rod to a second, fired position as said trigger is moved rearwardly elevating said releasing bracket and raising said rib from said control notch, allowing said loading rod to move forward as urged by said loading coil spring, said loading rod activating said projectile loading mechanism. 
 
     
     
       14. The bug killing gun, as described in  claim 4 , wherein said gun uses a refillable compressed gas cylinder as a compressed gas source, said gun further comprising:
 a refillable compressed gas cylinder, said cylinder having a shut off valve and an attachment fitting disposed adjacent a first end; 
 a mating attachment fitting, said mating fitting mounted to said support stock and being fluidly connected to a metering device; 
 said metering device being fluidly connected to said chamber and said metering device permitting a predetermined charge of compressed gas to enter said chamber upon activation of said compressed gas release mechanism; and 
 wherein a charged refillable compressed gas cylinder is attached to said mating attachment fitting, said shut off valve is opened and said compressed gas is released by said metering device upon activation of said compressed gas release mechanism. 
 
     
     
       15. The bug killing gun, as described in  claim 14 , wherein said compressed gas release mechanism further comprises:
 a trigger, said trigger being urged forward by a trigger return spring; 
 said trigger having an upper notch, said upper notch engaging an internal safety pivot, said safety pivot preventing activation of said compressed gas release mechanism unless said cocking action is completed; 
 said trigger having an elevating ramp disposed rewardly of said upper notch, said elevating ramp urging a releasing bracket of said latching mechanism upwardly against a downwardly urging compression spring as said trigger is moved rearwardly; 
 said releasing bracket moving slidably within a vertical channel in said supporting stock and having a downwardly facing rib, said rib releasably engaging an upwardly facing control notch in a loading rod; 
 said loading rod being urged forward by a loading coil spring, having an upwardly angled ramp at a rear end, disposed behind said control notch, said ramp guiding said rib into said control notch, said loading rod moving rearwardly in a channel in said supporting stock during said cocking action; and 
 said releasing bracket retaining said loading rod in a first, cocked position as said rib engages said control notch and releasing said loading rod to a second, fired position as said trigger is moved rearwardly elevating said releasing bracket and raising said rib from said control notch, allowing said loading rod to move forward as urged by said loading coil spring, said loading rod activating said projectile loading mechanism and said metering device. 
 
     
     
       16. The bug killing gun, as described in  claim 4 , wherein said gun uses an external compressed gas line as a compressed gas source, said gun further comprising:
 an external compressed gas line, said line being connected to a compressed gas source and having a shut off valve and an attachment fitting disposed adjacent a first end; 
 a mating attachment fitting, said mating fitting mounted to said support stock and being fluidly connected to a metering device; 
 said metering device being fluidly connected to said chamber and said metering device permitting a predetermined charge of compressed gas to enter said chamber upon activation of said compressed gas release mechanism; and 
 wherein said external compressed gas line is attached to said mating attachment fitting, said shut off valve is opened and said compressed gas is released by said metering device upon activation of said compressed gas release mechanism. 
 
     
     
       17. The bug killing gun, as described in  claim 16 , wherein said compressed gas release mechanism further comprises:
 a trigger, said trigger being urged forward by a trigger return spring; 
 said trigger having an upper notch, said upper notch engaging an internal safety pivot, said safety pivot preventing activation of said compressed gas release mechanism unless said cocking action is completed; 
 said trigger having an elevating ramp disposed rewardly of said upper notch, said elevating ramp urging a releasing bracket of said latching mechanism upwardly against a downwardly urging compression spring as said trigger is moved rearwardly; 
 said releasing bracket moving slidably within a vertical channel in said supporting stock and having a downwardly facing rib, said rib releasably engaging an upwardly facing control notch in a loading rod; 
 said loading rod being urged forward by a loading coil spring, having an upwardly angled ramp at a rear end, disposed behind said control notch, said ramp guiding said rib into said control notch, said loading rod moving rearwardly in a channel in said supporting stock during said cocking action; and 
 said releasing bracket retaining said loading rod in a first, cocked position as said rib engages said control notch and releasing said loading rod to a second, fired position as said trigger is moved rearwardly elevating said releasing bracket and raising said rib from said control notch, allowing said loading rod to move forward as urged by said loading coil spring, said loading rod activating said projectile loading mechanism and said metering device. 
 
     
     
       18. The bug killing gun, as described in  claim 1 , wherein said projectile storage magazine further comprises:
 an upward facing conical container, said container having a circular opening at a lower end; 
 said lower end fitted sealably to an upper end of a vertical circular opening through said chamber; and 
 said container having a sealing lid removably attached at an upper end. 
 
     
     
       19. The bug killing gun, as described in  claim 18 , wherein said projectile loading mechanism further comprises:
 a metering rod, said metering rod being sized and shaped to fit sealably through said vertical circular opening through said chamber and having an orthogonal activation bar extending from a lower end thereof and a through hole disposed above said activation bar, said through hole being orthogonal to said bar and sized and disposed to align with said chamber when said bar is positioned against a stopping surface; 
 said activation bar being urged upwardly by a return compression spring to rest against said lower end of said vertical circular opening in said chamber; 
 said through hole filling with said particulate projectiles when disposed above said chamber in said conical container during said cocking action; and 
 said activation bar being urged downwardly by a pivotally mounted subordination pole to rest against said stopping surface just after activation of said compressed gas release mechanism, permitting said compressed gas to eject said particulate projectiles from said chamber and through said barrel. 
 
     
     
       20. The bug killing gun, as described in  claim 18 , wherein said projectile loading mechanism further comprises:
 a mid-chamber pipe, said pipe extending downwardly from a lower end of said magazine; 
 a lower portion of said pipe providing a stop for one end of a return compression spring; 
 a trajectory guide, said guide disposed below said magazine, having a hollow bore sized to fit slidably about said pipe and having a vertical slot extending downwardly from said lower end for a first predetermined distance and terminating in a stopping surface; 
 said trajectory guide being disposed about said pipe and providing a support platform for attachment of said projectile storage magazine; 
 a metering rod, said rod being cylindrical in shape and being sized to fit slidably within said pipe and having an orthogonal activation bar extending from a lower end thereof and a through hole disposed above said activation bar, said through hole being orthogonal to said bar and sized and disposed to align with said chamber when said bar is positioned against said stopping surface; 
 said return compression spring urging said metering rod upwardly to rest against said lower end of said vertical circular opening in said chamber; and 
 a subordination pole, said pole having a first end and a second end, being pivotally mounted to a cover for said compressed gas source, said first end bearing against an upper surface of said activation bar, said second end being urged upwardly by a cam upon activation of said gas release mechanism; 
 wherein upward movement of said second end of said subordination pole moves said activation bar downwardly, compressing said return compression spring and aligning said through hole of said metering rod with said chamber, permitting said compressed gas to drive said particulate projectiles out of said chamber and through said barrel; 
 wherein downward movement of said second end of said subordination pole permits said activation bar to move upwardly as urged by said return compression spring, said particulate projectiles filling said through hole of said metering rod as it rises in said projectile storage magazine surrounded by said particulate projectiles. 
 
     
     
       21. The bug killing gun, as described in  claim 1 , wherein said support stock further comprises a sight glass, said sight glass positioned adjacent said magazine and permitting a view of a level of said particulate projectiles contained therein. 
     
     
       22. The bug killing gun, as described in  claim 1 , wherein a pistol grip and a forearm of said support stock have flattened lower surfaces, said flattened surfaces permitting said bug killing gun to be balanced in an upright position for adding said particulate projectiles to said projectile storage magazine.